Drag-saw



(HQ Model.)

J. P. OYPHERS.

DRAG SAW.

Patented Sept. 28, 1886.

' INVBNTOR ATTORNEYS.

N. PETERS Pmm-Lnho n uer, wemm mn. D. c.

UNITED STATES PATENT OFFICE.

JERED PETER OYPHERS, OF HOLTON, MICHIGAN.

DRAG-SAW.

SPECIFICATION forming part of Letters Patent No. 349,876, dated September 28, 1886.

Application filed May 1, 1886. Serial N 0. 200,823.

To all whom it may concern:

Be it known that I, J ERED PETER GYPHERs, of Holton, in the county of Muskegon and State of Michigan, have invented a new and Improved Sawing-lllachine, of which the following is a full, clear, and exact description.

My invention relates to the construction of a drag sawing machine, wherein the parts are so arranged that the saw may be driven and the various adjustments be brought about by a single operator.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the figures.

Figure 1 is a side view of my improved form of sawingmachine, a portion of the frame being broken away in order to disclose the arrangements of the parts. Fig. 2 is a plan view shown in partial section, and Fig. 3 is a sectional elevation taken on line at x of Fig. 2.

The mainsupporting-frame of my improved form of sawing-machine consists of vertical timbers 10, that are properly braced by diagonal bracestrips 11. Two of the timbers or posts carry bearings in which there are mounted two shafts, l2 and 60, the shaft 12 being provided with a crank-arm, 13, having a handle, 14, and carrying a gear, 44, that engages with a pinion, 61, that is carried by the shaft 60, which shaft 60 is provided with a wheel, 15, having a crank-pin, 16, to which there is connected a pitman, 17, said pitman in turn being connected to the lower end of one of the arms, 18, of a swinging frame, 20, said frame being pivotally supported by posts 21, as clearly shown. The other arm, 19, of the frame is connected with a bar, 22, by means of a pitman, 23, the saw 24 being rigidly secnred to the extending end of said bar in position to project over the logway 30, which, as usual, is provided with rollers 25 25, and with a sharply-corrugated roller, 26, that is mounted on a shaft, 27, upon the inner end of which there is arranged a gear, 28, that is engaged by a similar gear, 29, carried by a shaft, 31, that is mounted in proper bearings and extends to the rear, where it is provided with a ratchet-wheel, 32.

A lever, 33, carrying a pawl, 34, is mounted so that the pawl 34 will engage with the ratchet-wheel 32, and as the lever is drawn forward the shaft 31 will be rotated, thus turning the corrugated roller 26 and advancing the log,

(No model.)

the distance through which the log is moved being determined by the length of throw given to the lever 33, which lever is provided with a stop, 35, arranged to engage with a rack, 36.

In order that a proper elevation may be given to the saw, I arrange the bar 22 so that it will pass through a sling, 40, that is suspended from one end of a lever, 41, that is pivotally mounted at the top of a post, 42,,the opposite end of said lever being connected to the upper end of a foot-lever, 43, that is pivotally connected to the base of the machine at 2, connection between the levers 41 and 43 being established by means of a cord or chain, 4.

In order that a proper and uniform motion may be imparted to the saw, I arrange the gear 44 so that it will mesh with a pinion or small gear, 45, that is carried by a shaft, 46, upon which there is secured a large balancewheel, 47.

From the construction described it will be seen that as a rotary motion is imparted to the shaft 12 through the medium of its arm 13 and handle'l4, the shaft 60 will be turned, and the bar 22, and with it the saw 24, will be reciprocated, the bar being guided at this time between posts 50, as shown. After the out has been made the lever 33 may be thrown to advance the log to the required position for the second cut.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

A drag-saw comprising the frame, the shaft 12, having the gear 44, the shaft below shaft 12,and having the gear-wheel 61 meshing into gear 44, and the crank-wheel 15, the shaft 46, having a fly-wheel, 47, and a gear, 45, meshing into gear 44, the standards 21 in front of the crank-wheel, the swinging frame 20, suspended from said standards, the arm 18 of said frame being connected at its lower end to the pin 16 of the crank-wheel by the pitman 17, the bar 22, having the saw 24, and connected at its rear end to the arm 19 of frame 20 by the pitman 23, the vertically-movable gate 40 in front of the frame 20, and means for operating it, and the guide-frame 50 in front of the gate, substantially as set forth.

JERED PETER OYPHERS.

W'itncsses:

ISAAC OAsADY, WILLIAM BADEAUEX. 

